RPM Shock Towers for the Associated RC18T & RC18MT are super strong and have several cool features built right in. The front body mounts are molded flat against the tops of the shock mounting areas, eliminating a potential weak spot. The front body posts have been extended to add some extra grind resistance when the truck flips over. We’ve beefed up areas surrounding vital mounting points on both the front and rear shock towers while still maintaining stock suspension geometry. We’ve also made it much easier to add extended body posts to these shock towers for users wanting SUV style bodies (requires the use of Assoc. #8874 – TC3 Body Posts). A set of RPM front & rear shock towers weighs in at the exact same weight as the stock versions – super strength without weight gains!

Suggested Retail  $9.95 / 1-front & 1-rear

RPM A-arms for the RC18T, RC18MT & RC18B have been meticulously engineered for strength and durability. These A-arms have beefed up hinge pin areas, shock mounts, and arm rails for the ultimate in 1/18th scale muscle! We even went so far as to move the hinge-pin retaining hole further away from the hinge-pin and incorporated a mini clamp to hold the hinge pin in place, thereby helping strengthen an otherwise weak area of the arm.

Combining a set of RPM 1/18th scale Associated A-arms with one of our RC18T/MT/B Wide Front Bumpers (#70032 or #70035) will give these wild little trucks the muscle and durability they so desperately need.

RPM RC18T/MT/B A-arms are backed by our industry proven breakage warranty and are sold in pairs. Each package contains all necessary hardware and mounting instructions.

Tech Note: Two packages will be needed to complete one vehicle.

Suggested Retail  $9.95 / pair

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(Front A-arms fit the T4 - see Tech Notes below)
The long-running success of RPM A-arms for the original GT has led to the release of our A-arms for the newest gas truck to come from Associated – the GT2. RPM GT2 A-arms were designed to solve several customer-related complaints about the stock A-arms. Foremost is durability. Our GT2 front and rear A-arms are designed to withstand some serious abuse! We’ve redesigned the entire front end, replacing the stock front bulkhead with a version that helps spread impact forces over a larger area at the inner hinge pin mounts. RPM front A-arms are wider at the inner hinge pin mounts by nearly 3/16” without altering suspension geometry. RPM GT2 rear A-arms are just flat-out beefy!
We also focused on the hinge pin retaining system used on the stock A-arms. Using a small screw hole so close to the hinge pin like the stock arms do weakens the A-arms at that point. We moved the hinge pin retaining screws in-line with the hinge pins, significantly strengthening our A-arms in the process. By eliminating the smaller 2-56 hinge pin retaining screws, we’ve also eliminated the problem of the hinge pins falling out due to varying screw head diameters, which seems to be a rather large problem.
Our final focus was on slop elimination. Our strict quality control allows us to tighten up all of our tolerances without fear of binding the suspension system. The final result – a smooth, free moving suspension with minimal slop. Our tighter tolerances on our A-arms allows other critical adjustments such as camber and toe angles to be much more consistent, which provides better and more consistent control of the GT2.
RPM GT2 A-arms come with all necessary mounting hardware and instructions. RPM GT2 A-arms are sold in pairs while our front A-arms are sold in pairs as well and include a new front bulkhead in the package.

Tech Notes: RPM Front A-arms can be used on the Associated T4. However, the outer front T4 hinge pins will need to be replaced with the outer front hinge pins from the GT2. Additionally, the upright spacers used on the T4 will no longer be needed. RPM Front A-arms require the use of the bulkhead we supply in the kit. Stock bulkheads will not work with RPM A-arms. RPM rear A-arms will not work on the T4.

Suggested Retail
Rear - $10.95 / pair
Front - $14.95 / pair including front bulkhead

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RPM is proud to offer a wide front bumper to help protect the fragile front-end components of the Associated RC18 T/MT/B/R. Our wide front bumper has all sorts of cool features that are bound to impress any RC18 T/MT/B/R owner.

• This RPM bumper is thicker than the stock version and wider for 3-5/16” of front-end protection!

• The extra width of the bumper helps protect the fragile front shocks.

• Our bumpers are not “bolt-on-over-the-stock” versions; our wide front bumpers completely replace the stock version.

• The mounting screw holes are countersunk and recessed into the RPM wide front bumper preventing impacts from damaging the screw heads.

• RPM nylons are much stronger than the stock material preventing the hinge pins from blowing out the side of the A-arm mounts.

• RPM bumpers carry the RPM lifetime breakage warranty.

• We’ve tightened the tolerances for less suspension slop while still maintaining free motion of the A-arms.

• We reduced the front angle of the bumper from the stock 65 degrees to a more “bumper friendly” 35 degrees.

Suggested Retail  $6.95

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